Save variables in env singleton

[kods...@gmail.com]

Hi,

I'm using env singleton to store variables to be used at later stage in same pipeline. It is working nice but documentation about env is confusing.

1) https://www.cloudbees.com/blog/top-10-best-practices-jenkins-pipeline-plugin - Don’t: Set environment variables with env global variable
2) https://jenkins.io/doc/pipeline/steps/workflow-basic-steps/#code-withenv-code-set-environment-variables - See the documentation for the env singleton for more information on environment variables.

It looks to me that env is a singleton to a single build - not a singleton to Jenkins instance. I see an point that withEnv is preferred in some places but saying don't use env without explaining why is confusing.

Regards

Kamil